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Finding the Fourth Proportional to 555,088.72, 766,028.92 and 325,649.95

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Solution

The fourth proportional to 555,088.72, 766,028.92 and 325,649.95 is: 449,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,088.72 : 766,028.92 = 325,649.95 : x
  2. Step 2: Convert to fraction form
    555,088.72/766,028.92 = 325,649.95/x
  3. Step 3: Cross multiply
    555,088.72x = 766,028.92 × 325,649.95
  4. Step 4: Simplify right side
    555,088.72x = 249,457,275,666.41
  5. Step 5: Solve for x
    x = 249,457,275,666.41/555,088.72
  6. Step 6: Final answer
    x = 449,400.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.